Not Ranked
Excaliber, I asked the Unique factory about AFR's and the Weaver's said they built a turnkey car that AFR's had been specified for on the 302 motor, and their stock header / exhaust assembly didn't quite fit and had to be modified. The headers bolted right on without a problem but something dimentionally was different so that the bend of the exhaust pipes had to be modified so it would mate with the hanger brackets.
They said they had no problems with Edelbrocks or Trick Flows and recommended I go that route to avoid having to change / modify the exhaust system. AFR's were my preference, but for second place, the Trick Flows edged out the Edelbrocks from a performance standpoint from everyone I contacted. I know the early TF's had valve geometry problems, that have been rectified. All of the flow test data I've seen show the TF's and the AFR's as having fairly similar flow rates up to .50 lift. The AFR's appear to be a higher quality piece, but the TF's, with Ferrea valves, competition valve job etc., should be a very good set of heads and provide excellent performance. Rick
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