I think your shift points are good (5100-5200). Don't worry about the lower intake or buying anything else right now. Just work on getting your mph to where it should be. With just pulleys and gears, I was trapping 98 mph. With your mods, you should be trapping AT LEAST 98 and running low 14's/high 13's.
Have you pulled your plugs and checked them? How do they look? What is your fuel pressure at?
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~Dan
2001 SVT Lightning
89' GT : Taking up garage space and waiting for a buyer...
Rice Hater's Club - Member #11
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