Re: Anyone install an MSD on their Howell TBI??
I don't have it going yet, they are cleaning my injectors, and I have to fab the adapter. It'll be up and going in the next week or so.
Im sure you could do it(spark table) yourself, but it would, of course, be easier to have most of it done for you. That's my reasoning for laying out the $100 for the chip. It's going on my daily driver. I don't have time to tweak curves for a month.
Their 258 system is all GM, like the howell. They use a 4bbl offenhauser intake and use a generic 4bbl to tbi adapter. I am not sure that they actually offer spark control in their kit, but I asked Norm to include it on the chip.