I just purchased a 351W Edelbrock performer RPM intake manifold and it doesn't have a rear cooling passage crossover. Is this a norm with 351W's or am I going to have temp issues (using trick flow heads)? Thanks for the help.
You can drill and tap the intake at the rear, and run Aeroquip type hose and fittings. A buddy of mine did this on his 351W, and temp dropped 10 degrees. He used Aeroquip -10 and the apropriate fittings.
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