New FE build BBM block and heads

[jkg2101]

855

i did EFI on my pantera. i ended up with not the best system. It was 10 years ago. i know a lot about it if anyone has questions. although it offers interesting opportunities for knowledge and tweaking, after 3 years I removed it and added a 750 holley carb. It runs every bit as good as the EFI ever did.

Others have been more successful with EFI. I will admit that.

The challenge with EFI, in my opinion, when it is working, is that it is hard to set your goals. In other words, i can set the target AFR to 13.8 or whatever, but who says that is what is best for this particular engine? need time on a chassis dyno to really do it great. vary rpms and loads, and then you have to add in environment (intake air temps) and things to really be great. I am amazed at how much data a new car uses to optimize the fuel and ignition.

The big car companies have the resources to make EFI really work great. For me, the self tuning never was all that spectacular, and a lot of the same principles go into tuning a carb, which is less expensive. definitely i was discouraged because there were some technical problems with my system

bottom line was that i spent a lot of my driving time trying to tune the EFI instead of having fun. it was tough to finally admit defeat and switch to a carb

As far as webers, i thought about that a lot. Really would love to do one day. just they are super expensive. and then there is the theoretical issue that they actually may limit CFM on a big cube engine compared to a big carb. Lots of discussion on that topic on the pantera forum a bunch of years ago. i dont't know.