I'm starting to settle on the idea of converting to fuel injection with the spare head I have. I just discovered that fuel injection guru and owner of Hamilton Fuel Injection is 20 minutes down the road. I'd been toying with the idea of using two 1 bbl cfi units and I came across a posting where he built a system for an inline chevy using 2 gm 1v tbi's. I don't really want to be an expert in fuel injection or design my system so I think I'm going to get a hold of him. But in the mean time, one thing I'm pondering and questioning is whether it is better to use a 2v TBI vs 2 1v's with our log head. My thinking is that with 2 1'v you have some injection closer to the ends but the other half of the charge is further away. The center cylinders would still be in the sweet spot. Where would they best be mounted on the log, on either end? Or is it best just to go 2v and call it good enough?
Another thing I don't understand is electronic spark timing. I see all these trigger wheel setups and stuff but are they needed with TBI or only MPI? Can you use the DSII distributor with the vac advance removed, mech locked down, and an 8 pin HEI module to do EST with a GM ECM?
Another thing I don't understand is electronic spark timing. I see all these trigger wheel setups and stuff but are they needed with TBI or only MPI? Can you use the DSII distributor with the vac advance removed, mech locked down, and an 8 pin HEI module to do EST with a GM ECM?