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Rob, I tried every spring, jet and rod in the 1407 kit, and some others I had laying around. None of it worked. In fact, most of the time it got worse. Drilling was the only option. Good luck.

Al, my set up was way to rich on the primary side. Ended up drilling an .100 hole in each of the primary plates to lean it out. That did the trick

Sorry to say the pic's I had of my ported X heads were lost in a phone problem. I will say that the porting I had done proved out to be very effective, no hard numbers but there was a big difference in the seat of pants acceleration

Doc if you want those X heads ported I got a Man here in MO that will do them and do them correct. This old Mopar man has ported more heads than he can remember. PM me

Any quality 10W-30 oil that does contains ZDDP. Valvoline VR-1 is good example, there are many others. Dont waste your money on additives Do spend your hard earned money on a good oil filter. I was in the engine industry for close to 40 years and always have used WIX filters. I like the...

Granted This appears to be more of a street application, my thought was that the dual plane AirGap may produce a little bit better driving manners.

Just changing to a AirGap isn't going to buy you much if anything that you can feel by the seat of your pants. Now port the heads you have and port match an AirGap to the freshly ported heads now your going places and you will feel the difference.

Need more info for an answer What engine? What year? Any obvious modifications?

Snake Oil If you use the proper products to begin with you dont need any additives. Exception being the addtion of ZDDP for flat tappet cams.

Tight lash I like it.

Hey Rat drop us a link to your YouTube channel, please. Thanks in advance Jim K

Switcher? Never heard that term

Rat, I have been running one of Don's white boxes for three years. It has performed very well, no issues, and I really like the rev limiter.

Yes, they are made by John Callies

With no oiling mods I went from using a stock oil pump to a Melling HV pump Oiling thru the shafts, roller rockers and pressure feed roller wheels. Hot idle oil pressure, in gear, with the standard oil pump was 15 to 20 psi, with the HV it is now 25-30 psi

I am currently using Morel solid roller lifters on a cast core Comp Cams hydraulic roller cam in a 1969 LA 340. No block or oiling mods. No problems yet but I do not have many miles on it yet maybe 1000 miles

Summit Racing Order it all at the same time and get free freight. Their customer service is second to none.

You are over thinking this, these are simple systems doing simple tasks. Like others have suggested get a vacuum gauge and watch what it tells you in differant driving modes. When you do this you will have a much better understanding. Keep it simple, small adjustments, one change at a time and...

Thanks for the offer but I am currently tapped out. Should have got to me before black friday. LOL

...no hard fast rules. It will be a happy balance between the VA adjustment and your all in timing set buy the distributor. For example the VA adds 10* advance on my 340 operating on ported vacuum. My all in mechanical timing is 34* So 34* + 10* = 44* at steady cruising speed while the engine is...

Would you please provide a link or part numbers of the shocks you used. Thanks

If you care at all about fuel economy you will want your vacuum advance working properly. You do know that most are adjustable.

Is that what they refer to as "warp speed"? LOL

Slappy refresh my memory, what radiator and fan are you using?

Bummer Hopefully it will come back to you Good Luck

I run Morel solid rollers on a Comp Cam hydraulic grind cam 1969 LA 340 with ported X heads double springs Comp roller rocker arms oiling thru the shafts Comp one piece push rods with oil thru holes Melling HV oil pump stock pan with a windage tray Stock block no oiling mods no lifter bore...

Just buried my Sister in Law from complications of long term Covid. She got it over a year ago, never really got over it. Got it again 2 months ago this time it took her. The Doctors told my brother their was nothing they could do. 70 year old retired school teacher.

Is this car still for sale? Thanks in advance

I am in need of a pair of seat foam kits for 68 Barracuda bucket seat foam replacments. Anyone have a reliable source that would have them in stock? Legendary is quoting 8/23 shipping

Not to hijack the thread but it is all relevant. Which auto trans do you have? Have you tried using a factory tail housing counter weight?