I had to go to a friend's house earlier to put some MSD Plug Wires on his 455 Olds. Drove the Starion there with no problems. Finished up with the wires, stayed a while, and then left. I made it down his road fine at about 45-55 mph. Didn't peel off or anything...just took it easy. I went to go onto the main road and had some cars coming and now and then I like to open it up but...as soon as I hit 5psi and tried to take it to 10...it started popping and misfiring VERY badly. I haven't done AN

Looking to buy new or slightly used boost guage that will take the place of stock guage. or know where I can get one. Thanks for all the help!

Took the car for a drive with the new torque converter. Got on in 3rd and started having a pulsating vibration that shakes the whole car. Mostly from the rear. Not to bad at around 20-30mph but when I get past that, it has a bad vibration. Got the rear end up on jacks and both axels wobble. Could this cause the vibration? Btw, car has 302 blow thru turbo with auto.

Hey guy's wonder if you guy's could help so i have a 88 conquest with auto and mod list is 2.5 DP all open exhaust welbro255 pugs wires cap rotor bse kit new injectors air filter and 265 40 18 in the rears So on the high way at 75 i am only make 10psi negative vac when cruise is that enuff?