406 on pump gas
Hey guys. first time posting here so cut me a little slack. I've got a 406 sbc with vortec heads, shaved a little with 2.02 1.60 valves, rpm air gap manifold, 750hp carb, 292 lunati cam bracket 2, probe dished forged pistons around 9.5cr. I race mud. 3.73 gears, 208 in low range. 34 and 36 tire classes. rules dictate i gotta run pump gas in the classes i run. been looking at the big port vortec bowtie heads. you all think its worth shelling down the bones to upgrade? Any guesses what power increase i would net. Thought about also going to a full roller setup, but wasn't sure it would justify the expense, ie retro fit lifters and a new roller cam, new rockers. on side note, do you still have to use self aligning rockers with bowtie vortecs. Runs good as is but, always trying to keep a step on competion. thanks guys