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greg64 · 02-02-2008, 07:16 AM

This was my 77's 250 with multi-port EFI. Something of a "franken-truck" it is.

The MPFI didn't work as well as I thought it would (for a reason I now know). Turned out that TBI was better for these engines.

For you guys running 6s, make sure you retire your points. Either switch to the later HEI (easy) or use a Pertronix. Makes a huge difference, especially if your mixture is a bit lean at times.

02-02-2008, 07:16 AM	#3
greg64 Registered User Join Date: Dec 2007 Location: Kimberley, BC, Canada Posts: 799	Re: Tricked-out Chevy six cylinder engines This was my 77's 250 with multi-port EFI. Something of a "franken-truck" it is. The MPFI didn't work as well as I thought it would (for a reason I now know). Turned out that TBI was better for these engines. For you guys running 6s, make sure you retire your points. Either switch to the later HEI (easy) or use a Pertronix. Makes a huge difference, especially if your mixture is a bit lean at times. Attached Images __________________ Greg 64 GMC Suburban - 283, NV3500, 14 bolt 77 C10 swb - 292, SM465, 12 bolt Last edited by greg64; 02-02-2008 at 07:21 AM.