If it was going to be the same level of difficulty to put either of the 351s (W or C) in a 86 I would go with the Clevo. But I think I'm safe to say that there are quite a few more conversion kits for Windsors. Not to mention you can find Windsor parts all over. You can't say the same about Clevelands. I think Clevelands do respond to mods better, like MrWesson22 said. They are just a little harder to build. Make sure you do it right!
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'69 Coupe with 351W
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Edelbrock Performer-RPM intake manifold, Edelbrock Performer-RPM cam, Edelbrock lifters, Edelbrock 750 cfm carb, Accel coil, Moroso Blue-Max spark plug wires, Hedman headers, 2 1/2" pipe, glasspacks, Edelbrock double roller timing chain, Edelbrock valve springs, Flex fan, C4, Lakewood traction bars, 3:1 open rear-9" 3.89:1 posi coming this summer
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