wats up guys i finally bought my 1991 ef civic and would like to swap the engine for a b20 vtec swap the problem is im not sure if an obd1 or an obd2 head would work on this set up i would like the head to be a b16 but not sure wat obd to go with also i have a block from a usdm b20z crv complete that i pick up at a local u pic for 500.00 if i decide to go with the obd1 b16 head and the b20z block will i run into major problems . i know that i would have to buy a conversion kit to obd1 for the head and purchase the ecu what else would i need to fit this set up any advice appreciated thank you