footbrake or 2 step w/holley vac secondary ?

Dan Lattimore · 04-06-2019, 09:46 PM

Went through this with Kenny Coonce's A/SA Camaro years ago. Car started to wheel stand after going to two step. With the stiffest spring in the vacuum valve the secondaries are fully closed when up on the two step. When the two step is released the car initially starts to leave on a two barrel with the secondaries steadily feeding in . Kind of like a controlled bog. Fine tuned it with vacuum springs till it carried them out and set down pretty as a picture. Kenny did the same thing to Randy Heer's car ( Kenny's old one ) and Randy stood there in disbelief . Shared that story with Jim and Matt Morgan at Englishtown one year. Shortly after Matt was replacing oil pan and headers on the Mustang.

04-06-2019, 09:46 PM	#4
Dan Lattimore Member Join Date: Jan 2003 Location: Beaverdam, Va./ Port St. Lucie,Fla. Posts: 362 Likes: 177 Liked 154 Times in 37 Posts	Re: footbrake or 2 step w/holley vac secondary ? Went through this with Kenny Coonce's A/SA Camaro years ago. Car started to wheel stand after going to two step. With the stiffest spring in the vacuum valve the secondaries are fully closed when up on the two step. When the two step is released the car initially starts to leave on a two barrel with the secondaries steadily feeding in . Kind of like a controlled bog. Fine tuned it with vacuum springs till it carried them out and set down pretty as a picture. Kenny did the same thing to Randy Heer's car ( Kenny's old one ) and Randy stood there in disbelief . Shared that story with Jim and Matt Morgan at Englishtown one year. Shortly after Matt was replacing oil pan and headers on the Mustang. __________________ 66W30POST Last edited by Dan Lattimore; 04-06-2019 at 10:42 PM.