installing distributor chevy 350 tbi intake

In 1986 California still required smog to be in working order on a 67 Camaro, to meet the rules at that time a Smog kit had to be added to a 67 camaro, the change at that time was to set the timing to 0 BTC, and plug the vacuum advance, and to place a small sticker on the driver window or dash. The main reason GM made the switch was for SMOG not performance as it was mandated by the goverment, I grew up at that time, and I remember how bad all the cars were in performance and power when they made the switch.

The TBI was tuned perfect, Had it checked several times, the origional TBI computers were slow to process changes, and your right Carbs take more effort to tune, but when setup correctly do as well.

There's a reason gm made the switch about 40 years ago. 'I'm going to assume your tbi unit was not tuned? As for changes I have yet to find a carb that takes into account air temp, knock, coolant temp, etc.Ĭarbs can work real well but they never will have the ease of tuning nor the instantaneous adaptability that efi has. And timing checked many many times to be sure. I'm sure to get a lot of negitive post on the above about how this won't work, however been running like this for a while, tested fuel pressure under all loads with a gauge in the car, perfect 8psi will full flow to the return line unrestricted. Want to save some cash on the fuel system, pick up a brass tee fitting for $1.69 and an 8psi cracking check valve with a stainless or brass seat $24.00 If you have a digital timing light check the curve while all those are unplugged and the carb is installed. The idiot light on the dash will turn on, but the car will run and timing will work from the computer with a default curve thats been programed into the computer's 'Limp home mode' which works pretty close. Interesting Fact, if you leave the computer connected the the TBI Distributor, Remove only the, TPS, INJECTOR Wiring and IAC. First just a little back ground, I was CARB and went TBI, won't go into the details.ĭecided to switch back to test something with the CARB, but did not want to pull the Computer or Distributor.

Installing distributor chevy 350 tbi intake