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Thanks for the reply! I emailed the builder this morning with questions about the cam. The builder is not familiar with the truck. I pulled the engine delivered it to them and picked it up 14 days...

The dyno numbers were run while I was there. Common sense tells me you could not run those numbers with an RV cam. I bet you guys that know this stuff are surprised how little some of us really know...

A number the builder gave me was 280 at .050. Does this make sense. Supposedly an RV cam. Some of the dyno numbers are below.
RPM TQ HP
2700 519 266.9
3600 534 366.1
4600 481 ...

Pat I really appreciate everyones help. What brought the question up is when shifting in and out of gear at idle there is really not a lot of noticeable rpm change (don't know for sure tach is not...

Thanks Tech! I need to get all the details about the engine rebuild and the truck. So far I am super happy with the way it performs. We have had the truck for a year and have just got it on the road...

What do they do and when do you need one? Just got my truck back on the road with more HP(425) turo 400 from a 78 suburban. My wife is grinning ear to ear:D:D:D I am a blessed man!