I believe there is a version of the ram's horn manifold that turns the exit flange to the rear on the driver's side. That might give you the needed clearance. My dyno tests have shown a slight HP advantage for the ram's horns over the rear-exit manifolds, but only at fairly high RPM- - - -6K+.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
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