I would say you are probably more in the 450-500 hp range. Unfortunately those blowers were a show thing more than performance. I ran the B&M blower on mine and it was cool when it worked. It had a distinct whistle at low rpm cruising and you could hear it when you jumped on it. Its good you have the 10 rib belt kit on yours, you need that for the amount of overdriving they need to make any decent power. But overdriving makes a lot of heat and offsets the boost. Mine was rigged with an 8.5:1 compression engine to make about 11-1 compression with the pulley set up I had. Ultimately I lost a Teflon strip in the rotor and gave up on the whole idea. I built a 10.7:1 357, (350 .040 over) with a solid lifter cam and the car was much faster than it was with the blower and solid lifter blower cam. But even then, I put the car on a chassis dyno and made 386 hp to the rear wheels. I figure it was about 475-500 at the crank.
442 355 144 weiand blower maintenance and driving
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