Block huggers BB A BODY (boost maybe)?

I was wondering if any of the members here might have a set of this style of block hugger headers maybe for a different project I could use some measurements if its not to much of a problem.



Im thinking about trying to use a pair of these headers for my next boosted creation but im not sure on fittment it appears the collector is angled in and im jot sure if it will clear the valve cover on a low deck BB. My nexy concern would be 1,4,2,8 pipes clearing the inner fender well. Naturally id be flipping them upside down

If anyone has a pair of these lying around id appreciate some measurements id hate to drop a 140 bucks I could use somewhere else
thanks fabo