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BIGDATOWN · 02-03-2011, 07:23 AM

My only thoughts is on the heads that they will be very large for a 306. My opinion is they would work much better on the 351 but you have to change valve springs on the heads for flat tappet/and depending on if it is hydraulic or solid.

02-03-2011, 07:23 AM	#2
BIGDATOWN Senior Member Join Date: Aug 2010 Posts: 221	My only thoughts is on the heads that they will be very large for a 306. My opinion is they would work much better on the 351 but you have to change valve springs on the heads for flat tappet/and depending on if it is hydraulic or solid.