one of my students( well I guess former as he graduated a couple years ago) dropped of his f100 project. I guess ya never stop teaching. anyway, he didn’t listen to his wise instructor and installed a 351w that he built himself. I guess I would have done the same thing as my appreciation for 6cyl engines was very low at that same age. He dropped it off at the house due to frustration getting it to fire. The engine is ,030 over flat top with a thumper cam. The block is a 78 and the heads are early 69s. He had the distributor in the wrong location when it arrived. We did a quick check and set the distributor in the correct spot. The firing order is correct and the cam specified the 351 firing order. We have spark, new stock points dizzy. Just turns over hard like it’s out of time. kid swears that the timing chain is correct. This engine just doesn’t want to fire off. I only messed with it for about an hour and am charging the battery. My other question is his combination of parts. I have built 302s and 351s but not this combo of parts. . I know there is a deck height issue. These early 351 heads have adjustable rockers. What issues will this combo cause if any?