1974 318
Thanks Rumblefish, I was curious about this. It seems like a lot of people are fans of the TQ. Is this bad because of the spread bore of the TQ?
The spreadbore design has it's pros and cons. Speaking from a purely performance aspect, there not as good as a square ore design. The square bore keeps the air and fuel even (or close to it) as it exit the carb from underneath. This helps in power production. Distribution from the carb is good.
The spreadbore's pro is the two very differance sized throttle bores. The small primary side lends itself to great throttle response, better fuel atomization which helps in mileage.
The secondary side offers explosive opening acceleration.
The Thermo Quad as well as all Carter's are not known for there top end Hp ability. But the so make excellent torque low and mid. Right where you live on the street. And this is why there so popular in addition to being easy to tune and stay tuned.
Once you learn a TQ, you'll really like them. There an excellent street, street strip choice carb. Tuning parts are hard to find. Just use the current Edelbrock AFB rods trimmed down 3/4 of an inch from the top, rebend.
The performer RPM is a square bore intake while the TQ is a spread bore carb.
Would either use a spacer/adapter or a regular performer intake
I think he's got that. I'd skip the Performer in favor of a Action Plus by Weiand.
If it were a serious, heavy (big) crammed engine, and a larger one, I'd look to the single plane M1.
I'd skip the spacer spacer because of the added height. There will be intercept ace with the hood and that's without an air cleaner.
