Recommended 4bbl carb for stock 318
Okay…..:realcrazy:
I completely forgot to post the finishing steps of the upgrade. So here we go
Initially I asked about a recommended carb, and received lots of feed back and recommendations.
It would seem the best carb to go with should be based on the final point of your upgrades, basically cams, intakes, exhaust heads, etc. When this is taken into account you will have a required CFM range needed and with that, internal carb parts can be swapped to maximize your requirement. Some of the parts will point you direct to an stock Edelbrock's or Holley's, to Demon's and Quick Fuel's. But when it comes to all the recommendations for a car with just a basic upgrade like just an exhaust or cam or intake maybe a combo. For ease of install an tuning it looks like an Edelbrock may be best, cost may be Holley, and original looks may be Thermoquad. In any case the basically have the same performance, however the Thermoquad has smaller primaries for better economy at lower rpm, and larger secondary's for reaching faster high rpm but this is a trade off for old technology an very difficult tuning. As for the Holley it's a bit difficult to tune and has a lot of parts for possible issues. And finally that Edelbrock… Because it is easy to install, has the fewest parts and most basic internal system that makes it the best for tuning. Easy adjustments, easy to change internal upgrades if needed, easy maintenance.
As for mine, My end goal is a stock look with a little extra. So a stock bottom end with stock heads and a mild cam and shorty headers with dual exhaust. Since it's a 318 to maintain a semi stock look it was the spread bore intake manifold and I would like to use a Thermoquad with that look.
But I only have so much money and am having to do all these upgrades in many steps. First was the exhaust with a dual 2.5'' and then a 4BBL is needed. Since I am still looking for a complete Thermo to rebuild, So I used a Holley (part #9834) known as a newer 4160 has a single inlet with electric choke that I already had sitting around. Below are the pics of the upgrade. Holley offers a direct bolt on kit for Plymouth if needed, but I bought the universal install kit and ended up not needing it. Although I did make a very easy offset riser bracket for the throttle cable that bolted onto the existing bracket and used the original lock down on top.
As for the pic with the arrows. If you were going to use this manifold and never put a spread bore back on you should completely round down all the center edges to ensure you get the best air flow.
Thanks for all the info from everyone:thankyou::thumbsup:
And I hope this gives a reasonable wrap up to help others in the future.
Okay…..:realcrazy:
I completely forgot to post the finishing steps of the upgrade. So here we go
Initially I asked about a recommended carb, and received lots of feed back and recommendations.
It would seem the best carb to go with should be based on the final point of your upgrades, basically cams, intakes, exhaust heads, etc. When this is taken into account you will have a required CFM range needed and with that, internal carb parts can be swapped to maximize your requirement. Some of the parts will point you direct to an stock Edelbrock's or Holley's, to Demon's and Quick Fuel's. But when it comes to all the recommendations for a car with just a basic upgrade like just an exhaust or cam or intake maybe a combo. For ease of install an tuning it looks like an Edelbrock may be best, cost may be Holley, and original looks may be Thermoquad. In any case the basically have the same performance, however the Thermoquad has smaller primaries for better economy at lower rpm, and larger secondary's for reaching faster high rpm but this is a trade off for old technology an very difficult tuning. As for the Holley it's a bit difficult to tune and has a lot of parts for possible issues. And finally that Edelbrock… Because it is easy to install, has the fewest parts and most basic internal system that makes it the best for tuning. Easy adjustments, easy to change internal upgrades if needed, easy maintenance.
As for mine, My end goal is a stock look with a little extra. So a stock bottom end with stock heads and a mild cam and shorty headers with dual exhaust. Since it's a 318 to maintain a semi stock look it was the spread bore intake manifold and I would like to use a Thermoquad with that look.
But I only have so much money and am having to do all these upgrades in many steps. First was the exhaust with a dual 2.5'' and then a 4BBL is needed. Since I am still looking for a complete Thermo to rebuild, So I used a Holley (part #9834) known as a newer 4160 has a single inlet with electric choke that I already had sitting around. Below are the pics of the upgrade. Holley offers a direct bolt on kit for Plymouth if needed, but I bought the universal install kit and ended up not needing it. Although I did make a very easy offset riser bracket for the throttle cable that bolted onto the existing bracket and used the original lock down on top.
As for the pic with the arrows. If you were going to use this manifold and never put a spread bore back on you should completely round down all the center edges to ensure you get the best air flow.
Thanks for all the info from everyone:thankyou::thumbsup:
And I hope this gives a reasonable wrap up to help others in the future.
