I have a pretty built TPI 350, that the computer and TPI unit are from a 305, well I just put a even bigger nitrous cam in it, and im not sure yet if its a vaccum leak, but what happens at idle is ill pull up and it just shoots up and down, up and down, between like 1000rpm and 400rpm, it will do it like 6 times and then stop, I havent got the chip cut yet, but im in the works of that, but I have no codes on and the ses stay off!!! What do u think it might be?

[This message has been edited by JucinGTA (edited June 26, 2001).]

 

did you change the chip to a 350 chip? I have one that i did the same thing to and havn't changed the chip and is doing the same thing your is doing. I figure it's because of the chip. is yours maf or map?

 

Mine is maf, but the cam I had in it was pretty wild and it didnt do it!!!!!!

 

what about the chip???

 

Nope no chip!!!!