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Makes me feel OK about my '71. I milled and ported the head for 32mm and replaced the pistons. Later regretted porting the head to 32mm, but we didn't know better then about better flow. Commnoz later flowed the head, so even better now.OP Quawk would do well to leave head stock with 30mm ports if that's what he has.If 32mm carbs are desired, use '74 RH10 manifolds to mount 32mm carbs to 30mm head. Well proven to flow better.
Makes me feel OK about my '71. I milled and ported the head for 32mm and replaced the pistons. Later regretted porting the head to 32mm, but we didn't know better then about better flow. Commnoz later flowed the head, so even better now.
OP Quawk would do well to leave head stock with 30mm ports if that's what he has.
If 32mm carbs are desired, use '74 RH10 manifolds to mount 32mm carbs to 30mm head. Well proven to flow better.
