I've got three missile pumps and never had a problem on my 1100 HP n/a and 1300-1400 NOS engines. I think they're good pumps. I use Charlies oil pans that cost about $450.00 and Steffs dry sump tanks. I bought two pumps from JoE Baker and one off ebay. Paid $400.00 for each pump. All three are 4 stage and pull about 9 inches of vacuum on there own. Any questions pm me and I'll help you out.
