2L Fiat twin cam in a 1975 Spider features 10:1 compression with forged pistons, ported cylinder head with oversize valves, 285V street performance cams, billet aluminum flywheel weighs 9lbs, billet aluminum crankshaft pulley weighs 1lb, adjustable cam gears, ceramic coated header, electric water pump, dual 44 EMPI IDF carburetors, 95amp alternator, aluminum radiator, 123 Programable ignition, Bosch Blue Coil. All products are available at allisonsautomotive.com