Help ! High Idle after acceleration
Years ago my car was converted to power disc brakes. The brake booster was teed into the vacuum modulator. The car never stopped great. I have read this isn't a good thing to have it run this way. So I ran a new separate line from the booster to the manifold, a new line to the vacuum modulator line into the port on the front of the carb, and ran the pcv into the carbs large port in the back. Drove the car and the brakes definitely felt better. After getting on the car the idle went way up so I pulled over and shut the car off then restarted it and its fine. Ive been messing with it all day and drove it quite a bit. It hasn't done it since this morning. This happens sporadically.
The local parts stores here are out of the 11/32 brake booster line so I used a 3/8 pcv line for now for the brake booster vacuum line. Could the line be causing the issue ?
I used brake cleaner to test for vacuum leaks and I couldn't find anything, checked the manifold nipple baseplate spacers etc....
I Did just get the carb rebuilt ( pro form 650 double pumper ) also and it is running rich, I have to mess with it. I don't think the surge issue has anything to do with that though.
any ideas are appreciated thnx
69 camaro 350 pro form, double pumper 200r4
1969 Camaro 350 200r4 342 Posi
1987 WE4 Turbo Regal E85
2003 Sierra Stepside RCSB Belltech dropped
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