Inliners International Forums General Discussion Blown and Injected T3 261 BullDog HEI /TPI

What spark plugs should I use on a T3 261+.20 BullDog/Solids HEI /TPI 700 cfm Holley Commander 950.
Turbo is from a 1980 Buik Regal V6 with custom 4" downpipe and adjustable waste gate set to open @ 8 psi. HEI is GM 7 pin with vac/mech advance removed.Commander 950 controls timing.Engine also has water/methanol injection. I know I only have 4 mains so the rev limiter is set for 4500 for now, maybe 5000 later.

Bill,
I would start with the same heat range as the Buick the turbo came off of, but in the thread and reach your engine uses.

Harry