I always budget an extra 100-125 bucks when I buy an Edelbrock intake. The machine shop that cuts them for me sees them all the time like this. Funny, when I phoned up an Edelbrock tech he acted like he never heard of this. Yeah right.
Interestingly, last month a new RPM intake for my SBC boat engine project fit perfectly right out of the box on the E-tec heads.
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"Objects in mirror are closer than they appear"
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