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Has anyone done test on different flathead manifolds. I was wondering the prefomance difference between the stock maifolds that go around the front of the engine, truck manifolds with dual exhaust, cast headers and tin headers. I have tin headers but never cared for tin headers. I also have...

I'm having a 255 merc engine being rebuilt. It has a 8CM cam it that has a loose oil pump gear and a worn feul pump drive. I would just use a electric feul pump but the loose oil drive gear is the stopper. It's so loose if I tilt the cam the gear falls off. My machinist says he doesn't trust...

I'm putting a 50 Merc flathead in a 34 ford. I would like dual exaust that flows good. I have a pair of tin headers. It looks like they may hit the steering box or shaft. I prefer cast iron manifolds. I heard that a Bob Drake manifold may work on the left side. Then use a stock Merc right...

I have a 50 Merc engine for my 34 ford 5 window coupe at the machine shop. This coupe will have no hood or fenders just a rough 50s style hotrod. Before I buy the water pumps, generator, fan, belts etc. I need to decide wide or narrow belts. I'm staying with a 6 volt generator. I don't have any...