273 new to me question

38 Dodge said

Thanks but this motor has adjustable rockers, but would / could this be a commando motor how would I be able to tell?

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Pull the heads and look at the postons. 4 valve reliefs is a 2 barrel engine. If it's a 69 with stock pistons it is low compression but if the heads have been changed somebody has been in there messing around. You really don't know what you have.